Biology Revision is a great subject. It's fun, and it's interesting to learn about the world around us. There are so many different kinds of organisms that it's hard to know where to begin. Go to sct for best ideas about sct. Some people like to start by studying the smallest things on earth, such as single celled organisms that live in plants and soil. Others like to learn about animals and how they move around. It really depends on what you want to get out of Biology Revision.